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Manuela Schönrock

GPS-based earthquake parameter reconstruction within the German Indonesian Tsunami Early Warning System

Hochschule Neubrandenburg, 2009

Abstract: This work is concerned with the linear ill-posed inverse problem of GPS-based earthquake parameter reconstruction in the context of the German Indonesian Tsunami Early Warning System (GITEWS). Inversion of three-dimensional near field GPS observations, regarding slip distribution at the Sunda Trench, is performed by using a Green's function approach. The inverse approach which has been published by Hoechner et al. (2008), employs a simplex algorithm from the MATLAB Optimization Toolbox. The task of this thesis is the verification of the present GPS inversion technique by a sensitivity analysis on noise. In addition to this, it will be dealt with two other inverse approaches which are QR decomposition and an iterative approach by surrogate functionals.

diploma thesis   free access    




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